Motor-propelling unit for motor vehicles



Feb. 19, 1929. 1,702,865

J. GERIN MOTOR PROPELLING UNIT FOR MOTOR VEHICLES File y 10, 1926 4Sheets-Sheet 1 Feb; 19, 1929.

J. GERIN MOTOR PROPELLING UNIT FOR MOTOR VEHICLES File y 10, 1926 4$heets-She9t, 2

Feb. 19,1929. 1 1,702,865

J. GERIN MOTOR PBOPELLING UNIT FOR MOTOR VEHICLES File lay 10, 1926 4Sheets-Sheet ,3

' nu/emar -MQW Patented Feb. 19.139. UNITED STATES 1,702,865 PATENTOFF-ICE.

ueeum em, or rams, 3mm.

IOTOB-PBDPELIJIIG Um I03 MOTOR VEHICLE.

- Application fled I ay'10, 1820, Serial Io. 108,158, and in FranceIarch 19, 1926.

The present invention relates to a motor propelling unit for motorvehicles, and particularly for motor vehicles with closed carriage bodythe framework ofwhich 1s m one piece with the chassis.

This motor propelling unit whlch comprises the engine and its feedingand coolmg devices and the connection mechan sm between the drivingshaft and the driving wheels, is arranged in such a manner that it canbe connected to the chassis of the ve-.

' ers 38 being arranged in hicle or easily separated therefrom. Theaceompanymg drawing illustrates by way of example only a form ofconstruction 16 of the motor propelling unit forming the subject-matterof the invention.

1 is a perspective view of the motor pro unit.

' Fig. 2 1s a rspective view showlng' the 2 rear part of e framework ofthe carriage body of a motor vehicle, on which fits the motor propellingunit of Fig. 1. V

tailsigs. 3 and 4 are perspective views of de- I Fig. 5 is a frontelevation ofthe motor propelling unit, the engine bein removed.-

Fig..6 1s a pc tive view s owing the manner of mounting the motorpropelling block on the chassis or frame of the car.

The motor propelling unit, forming the subject-matter of the invention,preferably fits at the rear of a motor vehicle the car riage body ofwhich has a framework in one piece with the Fig. 2 shows the rear partof such a chassis framework and carriage body.

The chassis (Fig. 2) has an axial longitudinal bearer 1 and two sidelongitudinal bearers 2 stayed by a rear cross member 3;

The hoops 4 of the carri e body which extend from the side longitu inalbearers 2 are stayed, at their lower part, by bars 5 on which issecured, by angle bars and rivets, a cross member 6. .The bars 5Textend, by

forming the lon 'tudinal bearers 43, beyond the longitudina bearers, andbetween the said bars and substantially at the same level are arrangedtwo longitudinal bearers 7 secured at one end onthe cross member 6 andsupported relatively to the cross member 3 and bars 5, by means oftrusses 8 and stay members 9.

The longitudinal bearers 7 constitute the cradle-support on which reststhe engine of the motor-propelling unit. The latter comprises a casingforming a frame composed vided at 42,

constitutes the extension of the of the motor gopelling unit in positionon the carriage dy, at the rear art of the vehicle is ecially efiectedrough the frame or casing 12 of the engine proper. For that purpose,movable lo 'tudinal beargnment with the fixed longitudinal bearers 7 onwhich they are hinged at 39, the motor propelling unit which canrun onthe wheels 40, is

brou ht in alignment with the carriage body su'ita ly supported near itsrear part by' screw jacks or trestles. The said unit is then dis lacedaccording to the longitudinal axis of t e vehicle so that the movablelongitudinal bearers 38 pass under the bolsters 41 of the casin andthrough passages roig. 5. The side longitu nal bearers 43 fit under thebolsters 44 5) and the bolsters 41 and 44 are respectlvel connected withthe longitudinal bearers and 43 by means of bolts (eight bolts onlyaltogether). The lacing in ositionof the bolts through the oles 45 an"46 is effected through openings provided with movable panels and formedin the casing 47 which the carriage body proper and belong to the motorpropelling unit. This casing which,

for the clearness of the drawing, is simply illustrated by its apparentoutline (dot and dash lines 47) is terminated at its rear art by aremovable shell 48 (Fig. 3). This ell carries an inner hub 49 cut awayat 501m, cording to two diametrically opposed generatrices for receivingkeys 51 hinged to the ends of the movable longitudinalbearers 38.

These longitudinal bearers, owing to their connection by. hinges 39 withthe fixed longitudinalbearers 7 can be brought nearer together at their'free ends, for ermitting to insert the keys 51, previously nt down i asshown in dot and dash lines in Fig. 1, into a nut or ring 52 internallyscrew threaded. This ring 52 is screwed on the screw threaded end 53 ofthe hub 49, so as to hold the keys 51 pressed against the bottoms of thenotches 50. The extreme point of. the shell is constituted by a rubbercone or tip 54, or any other resiliently distort- Ill able material,suitably secured on ametal' rod provided with a notch 56. This rod 55 isfitted through the inner bore of the hub 49 and its end projectingrelatively to the outer face of the nut 52 receives a ring 57 providedwith a finger fitting in the notch 53, by constituting a bayonetjoint.The rod 55, when removed, allows the passage of the starting crank, theinner bore of the hub 49 being in' alignment with the drlving shaft,acts as a support for this crank. The shell 48 is protected against endshocks by an india rubber tip 54, which becomes distorted whenencountering an obstacle and then takes back its normal shape, when theobstacle is removed. The fitting of the tip of the ends of the movablelongitudinal bearers is effected through openings provided with movablepanels andformcd in the casing 47. The motor propelling unit is finallysecured'on the carriage body by connecting, by means of screws or bolts,the frame 58 of the tanks and water radiator (Fig. 1) with a sheet-ironplate 59 secured by angle bars 60 to the ends of the longitudinal bars61 of the framework of the carriage body (Fig. 2).

The wheels 40 of the. motor propelling unit have an independentsuspension and, for that purpose, their swivels 62 are mounted at thefree end of arms 63 provided with a hollow head 63 centered by a ballbearing 64 and a bearing 64 on a part rigid with the motor propellingunit. The resilient suspension of the wheels is ensured, in a well knownmanner, by springs enclosed in a hollow body 76 rigid with thepropelling unit.

The motor propelling unit comprises all the elements necessary for theworking of the engine and for the connection between the latter and thedriving wheels. The portion of the carriage body on which this unit issecured, comprises the space necessary for the passengers and thesteering wheels with the steering control mechanism. This unit isprovided with feeder, radiator 110, and the gasoline and oil tanks 111which are secured, by welding ,or riveting, to a hoop 58 fastened at itsends, to wheels 58 of the block, by bolts 58 or other equivalent means.The cooling radiator is provided, in the known manner, with an airsucking propeller 112 the actuation ofwhich is obtained by the pulleys113 connected by a belt or chain 114. The admission of the air iseffected through orifices provided in the sides of the carriage bodycasing 47 of the said unit, orifices being provided at the rear of thiscasing for the evacuation of the air which has passed through theradiator. The said unit comprises also a muflier, which, for greaterclearne'ss, has not been illustrated in the drawing.

To sum up, the motor propelling unit being separated from the vehicle onwhich it fits, it is possible, by suitably supporting it, to

cause the engine to rotate and to effect the adjustment of the same withthe .same facility as if the engine was mounted on a testing stand.Likewise, when the unit is connected to the frontpart of the carriagebody of the motor vehicle, if it is desired to inspect or repair withfacility any part or member of this unit, it suffices first to removethe shell 48 then, to remove lateral panels from the casing 47, to bringback the movable longitudinal bearers 38 in alignment with thelongitudinal bearers 7, and, after removal of the bolts, connecting thebolsters 41 and 44 to the longitudinal bearers 7 and 43 and the hoop 58of the sheetiron plate 59, to move the unit backward by causing it torun on its wheels, whilst the front part of the carriage body issupported by means of jacks. The unit is moved backward until readyaccess may be had to the member to be inspected. The inspection and, ifnecessary, the repair being terminated, the unit is again moved forwardand the connecting bolts are locked. .The junctions of the elements ofthe various control riggings are effected and the vehicle is in runningorder.

Moreover, it will be noted that a vehicle cahhave one or more sparepropelling units, so that the repairs can be effected with ease at thegarage, without interrupting the service of the vehicle, since thesubstitution of a unit for another is effected in a very short time.

What I. claim as my invention and desire to secure by Letters Patent is:

In a motor vehicle with closed carriage body having the same skeleton asthe chassis, a motor propelling-unit comprising, mounted on one and thesame frame, an engine, the feeding and cooling parts of the said engine,two driving wheels having an independent suspension, variable speedconnecting means between the driving shaft and the said driving wheels,two bolsterson the casing of the engine and two bolsters on the portionsof the unit frame adjacent to the wheels, two central longitudinalbearers forming an extension of ,the rear part of the carriage bodyskeleton, two movable longitudinal bearers jointed to the ends of thesaid central longitudinal bearers for permitting the passage of the unitbetween the movable longitudinal bearers when the latter are arranged inalignment with the central longitudinal bearers, side longitudinalbearers for supporting the bolsters of the portions of the unit frameadjacent to the wheels, means for securing the bolsters of the enginecasing on the central longitudinal bearers, and the bolsters of theportions of the unit frame adjacent to the wheels, on the sidelongitudinal bearers, a hoop on the unit frame supporting the tanks andthe radiator of the engine, a

vertical sheet-iron plate at the rear part of said for servi as a bearinfot the keys .of the movable "longitudinal arers, a

rod car 'n a rubber base and assmg through i 'fh e %ll1b of the shell, anotch at the end of the said rod for receiving, by a bayonet assemblage,a ring forming alocknut by the ring-nut mounted on the hub.

In testimony whereof I have signed my name to this specification.

JACQUES GERIN.

